HTML/CSS, Vue.js, Node.js, and SQL Online Test
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Sign Up To Use This TestThe HTML/CSS, Vue.js, Node.js, and SQL online test assesses candidates' knowledge across the whole Web stack from HTML, CSS, and Vue on the Web front-end and Node.js on the back-end to SQL for data access.
It's an ideal test for pre-employment screening. A good full-stack Node.js developer, who is using Vue for the front end, must be able to solve problems using Node.js and also to combine Vue and HTML/CSS to create dynamic and interactive user interfaces. Moreover, they must know how to write and analyze SQL queries, which are used to communicate with the database.
This online test requires candidates to solve coding problems and find and fix bugs in multiple technologies.
Recommended Job Roles
Full-Stack Developer
JavaScript Developer
Node.js Developer
SQL Developer
Vue.js Developer
Web Developer
Sample Candidate Report
Sample Free Questions
Config
3min
-
Easy
Easy
-
MCA
Node.js
NPM
Public
Node.js
Node.js is a cross-platform JavaScript runtime environment for developing a diverse variety of tools and applications. It is used primarily as the back end for web applications(including the MEAN stack).
NPM
npm is the default package manager for Node.js. As such, it is an important tool for every Node.js developer.
Public
Public questions (free account) are common interview questions. They are great for practicing, or if you want to filter candidates using the classic problems.
Consider the following package.json for a Node.js application:
{
"name": "skill-measure-app",
"private": true,
"version": "1.0.0",
"main": "lib/main.js",
"scripts": {
"build": "npm run cleanup & npm run test & npm run publish",
"cleanup": "rm -fr ./lib",
"test": "jest",
"publish": "npm publish lib"
},
"dependencies": {
"jest": "^23.0.1",
"custom-package": "file:../custom-package"
}
}
Select all the correct statements.
(Select all acceptable answers.)
Students
3min
-
Easy
Easy
-
CODE
SQL
Aggregation
Select
Public
SQL
SQL is the dominant technology for accessing application data. It is increasingly becoming a performance bottleneck when it comes to scalability. Given its dominance, SQL is a crucial skill for all engineers.
Aggregation
An aggregate function is typically used in database queries to group together multiple rows to form a single value of meaningful data. A good programmer should be skilled at using data aggregation functions when interacting with databases.
Select
The SELECT statement is used to select data from a database. It is the most used SQL command.
Public
Public questions (free account) are common interview questions. They are great for practicing, or if you want to filter candidates using the classic problems.
Given the following data definition, write a query that returns the number of students whose first name is John. String comparisons should be case sensitive.
TABLE students id INTEGER PRIMARY KEY, firstName VARCHAR(30) NOT NULL, lastName VARCHAR(30) NOT NULL
Avatar
7min
-
Easy
Easy
-
CODE
HTML/CSS
Borders
Element size
Styling
Public
HTML/CSS
HTML is the standard markup language for creating web pages. It's an essential skill for anyone creating web pages of any complexity.
Borders
Borders can be applied to most HTML elements within the body. This is one of the most used element decorations.
Element size
Setting the size of the elements on a web page is one of the basic things that any web developer or designer should know.
Styling
Styling user interfaces according to the specification is a daily routine for a front-end developer.
Public
Public questions (free account) are common interview questions. They are great for practicing, or if you want to filter candidates using the classic problems.
Every user on your website has an image avatar that is displayed when they post a comment. You want to style these images differently from other images on your site. Add a CSS class named avatar that fulfils the following requirements:
- The avatar's border is rounded, so that it appears as a circle.
- The avatar's width and height are both 150px.
- The avatar has a solid border, has a width of 2px, and be colored gray.
For example, the avatar in the template should look like:
Toggle Message
7min
-
Easy
Easy
-
CODE
Vue.js
Directives
Event handling
Public
Vue.js
Vue.js, or Vue, is a JavaScript framework for building user interfaces and single-page applications. It focuses on declarative rendering and component composition.
Directives
A directive is a special token in the markup that tells the library to do something to a DOM element. It is often the simplest way to perform a required task.
Event handling
Event-based design patterns are very common in modern applications, especially in the development of user interfaces.
Public
Public questions (free account) are common interview questions. They are great for practicing, or if you want to filter candidates using the classic problems.
Page contains an anchor element and a paragraph below it. The paragraph's visibility should be toggled by clicking on an anchor element with the following logic:
- At start, paragraph should not be visible
- After a click, paragraph should be visible
- After another click, paragraph should not be visible again
Implement the following logic by adding missing attributes to anchor and paragraph elements.
Premium Questions
The premium question library contains our unique, hand-crafted questions. We offer a refund if you find any of them answered online.
Questions
Links, Roads, Ingredients, Fahrenheit Converter, Shopping Cart, Ad, Addition, Article Style, ATM Locations, Authors, Autocomplete, Baby Names, Ban Users, Bank Branches, Bookmark, Cheapest Product, Christmas Tree, Cities, Countries, Developers, Editor, Employee Manager, Format Table, Hospital Patients, Index Performance, Menu Items, Merge Stock Index, Movies, Movies Live, Projects, Rectangles, Restaurant Menu, Retirees, Sales, SMS Messages, Student Activities, Tasks, Transactions, Youngest Child, Keywords, Label Color, Link, Loading, Logo, Share Button, Shirts, Timesheet, Upload, Warehouse, Widgets, Manager Sales, Delete Orders, Email Tables, Average Salary, Movie Genres, Calculator, Custom Link, Auto Show, Ice Cream Flavors, Poll, Breakfast Menu, Department Report, File Exists, Stream Transform, Run Sequentially, Weather Data, iframe, TestDome Logo, Post Comment, Validation Form, Blog, Screen Reader, Data Entry, Division, Student Rankings, Welfare Organization, Student Max Score, Cards Widget, Reorder, Countdown, Product Rating, Retry RequestSkills
HTML/CSSHTML/CSS
HTML is the standard markup language for creating web pages. It's an essential skill for anyone creating web pages of any complexity.
CSS selectors
Selectors are a programming pattern that can be used to select an element from a container. They are primarily used in technologies such as CSS and jQuery to apply styles to groups of elements.
Styling
Styling user interfaces according to the specification is a daily routine for a front-end developer.
SQL
SQL is the dominant technology for accessing application data. It is increasingly becoming a performance bottleneck when it comes to scalability. Given its dominance, SQL is a crucial skill for all engineers.
Conditions
Conditional statements are a feature of most programming and query languages. They allow the programmer to control what computations are carried out based on a Boolean condition.
Views
A database view is a result set that is defined by a stored query, the results of which can can also be queried. As a fundamental and widely used database construct, it's useful for candidates to understand how and when they should be used.
Subqueries
Subqueries are commonly used in database interactions, making it important for a programmer to be skilled at writing them.
Update
The UPDATE statement is used to modify the existing records in a table and is one of the most used operations for working with the database.
Node.js
Node.js is a cross-platform JavaScript runtime environment for developing a diverse variety of tools and applications. It is used primarily as the back end for web applications(including the MEAN stack).
Modules
In Node.js, modules are a way to package applications into multiple pieces. As such, it's important for every developer to know how they work.
Events
Events are the basic building block of Node.js. As such, they are important for all Node.js programmers.
Element spacing
Setting the margins and padding of the elements on a web page is one of the basic things that any web developer or designer should know.
CSS advanced
Cascading Style Sheets are the styling language of the web. Knowledge about advanced CSS features is required for seasoned front-end developers.
Element size
Setting the size of the elements on a web page is one of the basic things that any web developer or designer should know.
Constraints
Constraints are used to define rules and relationships. They are applied to a dataset. A constraint may take many forms, such as x ≤ 5 in a programming language and a NOT NULL constraint in a SQL table definition.
Create table
The CREATE TABLE statement is used to create a new table in a database. It is an essential command when creating new database.
Database schema
A database schema defines how data is stored in a database. An SQL database uses a schema to define tables consisting of rows and columns that use fixed data types to store data. Formalizing how data is stored is the first step towards building an application or service.
Select
The SELECT statement is used to select data from a database. It is the most used SQL command.
Create index
The CREATE INDEX statement is used to create indexes for tables. Indexes are used to retrieve data from the database more quickly. They are very important for making performant queries.
Performance tuning
The performance of an application or system is important. The responsiveness and scalability of an application are all related to how performant an application is. Each algorithm and query can have a large positive or negative effect on the whole system.
Flexbox
The Flexible Box Layout Module makes it easier to design a flexible responsive layout structure.
Positioning
Dynamic positioning of user interface elements depending on resolution is more important than ever in modern applications, making this important for a front-end developer.
Alter table
The ALTER TABLE statement is used to add, delete, or modify columns and constraints in an existing table. Alter table statements are important for all programmers who have to modify existing schemas.
Bookmarks
A bookmark is a hyperlink that points to a location within a document, which is defined by a name that is assigned to an element. Bookmarks are used when we need to jump to a specific location within a document.
Elements and attributes
Defining elements and their attributes is the first process in creating an HTML page.
Aggregation
An aggregate function is typically used in database queries to group together multiple rows to form a single value of meaningful data. A good programmer should be skilled at using data aggregation functions when interacting with databases.
Fonts
Setting the font name or size is part of creating any web page.
Ordering
Knowing how to order data is a common task for every programmer.
Bug fixing
Everyone makes mistakes. A good programmer should be able to find and fix a bug in their or someone else's code.
HTML5
HTML5 is now supported in all modern browsers, making it important for front-end developers to know how to use its features.
Left join
LEFT JOIN is one of the ways to merge rows from two tables. We use it when we also want to show rows that exist in one table, but don't exist in the other table.
Indexes
The proper implementation and use of indexes are important for improving the performance of database queries.
Union
The UNION operator is used to combine the result-set of two or more SELECT statements. It is often used when a report needs to be made based on multiple tables.
Group by
The GROUP BY statement groups rows by some attribute into summary rows. It is a common command when making various reports.
Insert
Even though most database insert queries are simple, a good programmer should know how to handle more complicated situations like batch inserts.
Joins
A normalized database is normally made up of multiple tables. Joins are, therefore, required to query across multiple tables.
Language
A programmer should use a language as a tool, always taking advantage of language-specific data types and built-in functions.
Hyperlink
Hyperlink, or simply a link, is a reference to data that the reader can follow by clicking or tapping. There's no web page without a hyperlink.
Animation
Animation is the process in which images or objects are manipulated to appear as if they are moving. It's a powerful effect that is important for UI designers to understand and be able to use.
Forms
Forms provide a method of grouping inputs and collecting user data. As such, they are important for all front end developers.
Tables
A table stores data as rows and columns. From databases to HTML layouts, as a data structure they are ubiquitous. They are an important structure for developers to understand and know how to use.
CTE
A CTE (Common Table Expression) is a temporary result set that can be referenced within another SELECT, INSERT, UPDATE, or DELETE statement. Recursive CTEs can reference themselves, which enables developers to work with hierarchical data.
Delete
The delete statement is used to delete records in a table and is one of the four basic CRUD functions (create, read, update, and delete) required for working with any persistent storage.
Borders
Borders can be applied to most HTML elements within the body. This is one of the most used element decorations.
Inline styles
Inline styles are styles that are applied directly on elements. This is one of the ways for applying styles and for some scenarios, such as for email, is the only supported way.
SQL CASE
The CASE statement is SQL's control statement. It goes through conditions and returns a value.
Vue.js
Vue.js, or Vue, is a JavaScript framework for building user interfaces and single-page applications. It focuses on declarative rendering and component composition.
Binding
Manipulating or assigning values to HTML elements from JavaScript code, and vice-versa, is a basic operation in every Vue application.
Directives
A directive is a special token in the markup that tells the library to do something to a DOM element. It is often the simplest way to perform a required task.
Responsive design
Anyone who works with web should know how to properly implement responsive web design that makes web pages render well on a variety of devices and screen sizes.
Selectors
Selectors are a programming pattern that can be used to select an element from a container. They are primarily used in technologies such as CSS and jQuery to apply styles to groups of elements.
JSON
JSON is an open-standard format that uses human-readable text to transmit data objects consisting of attribute-value pairs. It's the most common data format used for asynchronous browser/server communication.
Stream
A stream is a sequence of data elements made available over time. It is particularly useful for tasks that may benefit from being asynchronous, including tasks such as I/O processing or reading from a file, and as such is important for developers to understand.
Async-await
The async function declaration defines an asynchronous function, which can await a response. Using the async-await pattern allows using asynchronous code while not losing readability or maintainability.
Asynchronous programming
Asynchronous programming is a programming method used to to run tasks asynchronously. Running tasks asynchronously can improve performance and allow applications to feel more responsive. As such, it's important for all programmers who need to write performant or responsive applications.
Promise
In JavaScript, a Promise is an object representing the eventual completion or failure of an asynchronous operation. It allows associating handlers with an asynchronous action's eventual success value or failure reason. It is one of the commonly used asynchronous programming techniques in JavaScript.
IFrame
The HTML Inline Frame element (iframe) represents a nested browsing context, embedding another HTML page into the current one. Web developers often use it to display content within other content.
CSS layout
Cascading Style Sheets are the styling language of the web. For a front-end developer, a knowledge of CSS layouts is required.
Content manipulation
Adding or modifying content is the most common task when developing dynamic web pages.
Event handling
Event-based design patterns are very common in modern applications, especially in the development of user interfaces.
Managing state
Knowing how to overcome statelessness, the intrinsic limitation of web programming, is a very important skill for a web developer.
Semantic tags
HTML5 introduced semantic tags, which can greatly improve the level of automated analysis that can be done on documents, as well as improve the readability of HTML.
Accessibility
Accessibility refers to the design of products, devices, services, or environments for people who experience disabilities. It's important for all designers and developers to know how to optimize for people who experience disabilities.
Computed properties
Computed properties provide a standard way for combining instance fields into a new value. They provide tracking of their dependencies and value caching, and they are one of the basic building objects of every Vue app.
Components
Components are used in many frameworks and languages as the building blocks of an application.
Score Distribution
# of candidates
| 0-33% | |
|---|---|
| 34-66% | |
| 67-100% |
Score